The wooden mask that gives its wearer the powers of the Norse god Loki (as Jim Carrey learned back in 1994) is missing again, and Loki himself (Alan Cumming) traces it to an aspiring cartoonist (Jamie Kennedy) and his infant son (ostensibly played by twins Liam and Ryan Falconer, but really the product of the overworked digital-effects crew). Writer Lance Khazei and director Lawrence Guterman, having failed to heed the lesson of 2003’s Dumb and Dumberer: When Harry Met Lloyd
make a sequel to a Jim Carrey movie without Jim Carrey!), barge bravely but blindly ahead, saddling poor Kennedy with the thankless task of following Carrey’s inspired clowning. Also struggling vainly against the visual effects are Traylor Howard as Kennedy’s wife and Bob Hoskins as Cumming’s father, the god Odin.